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Acquisition (Alpine Valley Bread Company) - Additional Information (Detail) - Alpine Valley Bread Company $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 13, 2015 USD ($) shares | Dec. 31, 2016 USD ($) | Dec. 30, 2017 USD ($) ProductionFacility | Jan. 02, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |
Percentage of stock acquired | 100.00% |  |  |
Date of acquisition |  |  | Oct. 13, 2015 |
Business acquisition, description |  |  | On October 13, 2015, the company completed the acquisition of 100% of the outstanding common stock of Alpine, a leading organic bread baker, from its shareholders for total consideration of $121.9 million inclusive of payments for certain tax benefits. We paid cash of $109.3 million and issued 12,602 shares of our common stock to the sellers in a private placement. |
Total consideration paid | $ 121,942 |  |  |
Cash consideration paid | $ 109,340 |  |  |
Common shares issued for acquisition | shares | 12,602 |  |  |
Goodwill acquired | $ 36,500 |  |  |
Acquisition-related costs |  |  |  | $ 1,600
Sales related to acquisition |  |  |  | $ 11,900
Number of production facility | ProductionFacility |  |  | 2 |
Fair value of trade receivable |  |  | $ 4,800 |
Gross amount receivable |  |  | $ 4,800 |
Working Capital Adjustments |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Change in goodwill related to acquisitions |  | $ 500 |  |

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